Coal washing equipment is a necessary equipment in the coal washing industry, and it plays an irreplaceable role in coal sorting. Coal processing, gangue treatment, material and equipment transportation, etc. constitute the mine surface system.

The working principle of coal washing equipment:

1, the principle of the heavy-medium cyclone is similar to that of the classifying cyclone. Both underflow and overflow are separated by huge centrifugal force.

2, Density: In the dense medium cyclone, the closer the medium density is to the cyclone wall, the greater the density, and the closer it is to the underflow orifice, the greater the density. On the contrary, the closer to the center and the lower the density of the overflow port.

3, Factors that determine coal quality: 1 feed flow rate 2 bottom flow port diameter 3 cyclone length and taper.

4, Principle: Similar to a tornado, the large centrifugal force of the outer layer causes a low pressure in the center. Air is sucked in from the underflow, and the coal with a smaller density is spiraled backwards and discharged from the overflow, while the outer gangue is discharged from the underflow due to excessive density.

5, 0 bit line: the boundary line of overflow spiral and underflow spiral. Within the 0 bit line, it is overflow; outside it is underflow.

6, The internal movement of the heavy-medium cyclone is extremely complicated, and it is also a high-precision coal preparation equipment.